Question for Bill or Brock

I was talking to someone about the differences between andro and roids. One big difference that I heard was when you inject your body completely stops making testosterone. I don’t know exactly how many mg’s this takes to occur. He went on to say that andro just boost your testosterone levels and won’t cause the body to stop production.
So what I want to know is does taking andro possibly help your body get its natural levels of testosterone back to normal. Or get the levels up while your body begins production again. Thanks for your help